| [objective] Analysising the clinical factors and vessel characters after primary percutaneous coronary intervention(PCI)treatment with AMI resulted no-reflow phenomenon perceived prognostic among mean 18.5 month.[method] 186 Cases patients are with AMI including the onset angina after 30 minites to 12 hours more than 12 hours still with angina, no-reflow embolization after thrombolysis 4 hours cardiac shock after AMI 18 hou cardiac shock after 36 hours with complete left branch block. There are 34 Patients with slow flow. 11 case no-reflow.Of all the 45 case make as observe group ,the others as comparision grourp, then we analysis clinicnl factors, such as admission ECG cardiac function and angiojraphy result. Data were evaluated using t testand chi-squre test in SPSS 10.0 soft.[Result] There is prominent difference between two groups in no angina before 24 hour, diabetes mellitus(DM), cardiac function more than 2 class(killip), the number of Q wave in electrocardiogram, thrombolysis before PPCI.(P<0.05). But no difference in hypertensionsnoking, dislipodemia the time in beginning angina to bloon dilation(P>0.05). seeing thrombolism, complete occlusion, vessel lesion branchs have prominent difference in twp groups.(P<0.05). The lesion location and vessel diameter are no difference(P>0.05)[Conclusion] 1. Direct PCI open the interal related artery intreatment acute myocardialinfarction. It may increase coronary artery flow, improve the cardiac function.but it may produce no-reflow, no-reflow is a solated risk factor in acute myocardial infarction.2.They are main risk factors resulted no-reflow which include no angina with in 24 hour before in farctio dibetas mellitus cardiac function more than two class the number of Q wave the character of related in farction vessel and multi-branch. In the same time, the admission and long term prognostic is poor in no-reflow.3.No-reflow may accelerate cardiac function.increase death rate as follows one to six months .
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